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  • Title: Taeniacidal efficacy of SQ 21,704 in dogs by various types of oral administration and in comparison with niclosamide and bunamidine hydrochloride.
    Author: Cruthers LR, Linkenheimer WH, Maplesden DC.
    Journal: Am J Vet Res; 1979 May; 40(5):676-8. PubMed ID: 573081.
    Abstract:
    The streptothrinin antibiotics SQ 21,704 was evaluated against naturally occurring Taenia pisiformis and Dipylidium caninum infections in dogs when they were given at a dose level of 37.5 mg/kg of body weight in four different rations: loaf-type canned meat; chunk-type canned meat; dry (gravy-type) meal; and dry (pelleted) meal. The SQ 21,704 was 100% efficacious against both T pisiformis and D caninum infections when given with the chunk, gravy, and pelleted rations. When given with the loaf-type canned meat, it was 100% effective against T pisiformis and 60% efficacious against D caninum. The SQ 21,704 was effective against both tapeworm species when given orally as a liquid at a dose level of 37.5 mg/kg, formulated as an aqueous suspension containing 94 mg of activity per milliter. The SQ 21,704 was also tested in dogs when given orally in gelatin capsules at a dose level of 37.5 mg/kg without fasting, and was 100% efficacious against both tapeworm species. The results of a comparative taeniacidal study demonstrated that SQ 21,704 was 100% effective in removing both T pisiformis and D caninum when administered orally at a dose level of 37.5 mg/kg, whereas niclosamide and bunamidine hydrochloride were only partially effective at their recommended dose levels. One of five dogs treated with niclosamide at a dose level of 157 mg/kg was positive at necropsy, giving an orally efficacy of 80%. Three of five dogs treated with bunamidine hydrochloride at a dose level of 49 mg/kg were positive at necropsy, giving an overall efficacy of 40%.
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